Faster access than browser!
30 relations: Apparent magnitude, Bayer designation, Bright Star Catalogue, Constellation, Durchmusterung, Ecliptic, Effective temperature, Epoch (astronomy), Flamsteed designation, General Catalogue of Variable Stars, Henry Draper Catalogue, Hipparcos, International Celestial Reference System, Latinisation of names, Leo (constellation), Light-year, Moon, Occultation, Red giant, SIMBAD, Smithsonian Astrophysical Observatory Star Catalog, Solar luminosity, Solar radius, Star, Stellar atmosphere, Stellar classification, Stellar evolution, Sun, Variable star, Zodiac.
Apparent magnitude
The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.
New!!: Pi Leonis and Apparent magnitude · See more »
Bayer designation
A Bayer designation is a stellar designation in which a specific star is identified by a Greek letter, followed by the genitive form of its parent constellation's Latin name.
New!!: Pi Leonis and Bayer designation · See more »
Bright Star Catalogue
The Bright Star Catalogue, also known as the Yale Catalogue of Bright Stars or Yale Bright Star Catalogue, is a star catalogue that lists all stars of stellar magnitude 6.5 or brighter, which is roughly every star visible to the naked eye from Earth.
New!!: Pi Leonis and Bright Star Catalogue · See more »
Constellation
A constellation is a group of stars that are considered to form imaginary outlines or meaningful patterns on the celestial sphere, typically representing animals, mythological people or gods, mythological creatures, or manufactured devices.
New!!: Pi Leonis and Constellation · See more »
Durchmusterung
In astronomy, Durchmusterung or Bonner Durchmusterung (BD), is the comprehensive astrometric star catalogue of the whole sky, compiled by the Bonn Observatory (Germany) from 1859 to 1903.
New!!: Pi Leonis and Durchmusterung · See more »
Ecliptic
The ecliptic is the circular path on the celestial sphere that the Sun follows over the course of a year; it is the basis of the ecliptic coordinate system.
New!!: Pi Leonis and Ecliptic · See more »
Effective temperature
The effective temperature of a body such as a star or planet is the temperature of a black body that would emit the same total amount of electromagnetic radiation.
New!!: Pi Leonis and Effective temperature · See more »
Epoch (astronomy)
In astronomy, an epoch is a moment in time used as a reference point for some time-varying astronomical quantity, such as the celestial coordinates or elliptical orbital elements of a celestial body, because these are subject to perturbations and vary with time.
New!!: Pi Leonis and Epoch (astronomy) · See more »
Flamsteed designation
A Flamsteed designation is a combination of a number and constellation name that uniquely identifies most naked eye stars in the modern constellations visible from southern England.
New!!: Pi Leonis and Flamsteed designation · See more »
General Catalogue of Variable Stars
The General Catalogue of Variable Stars (GCVS) is a list of variable stars.
New!!: Pi Leonis and General Catalogue of Variable Stars · See more »
Henry Draper Catalogue
The Henry Draper Catalogue (HD) is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension (HDE), published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the Henry Draper Extension Charts (HDEC), published from 1937 to 1949 in the form of charts, which gave classifications for 86,933 more stars.
New!!: Pi Leonis and Henry Draper Catalogue · See more »
Hipparcos
Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993.
New!!: Pi Leonis and Hipparcos · See more »
International Celestial Reference System
The International Celestial Reference System (ICRS) is the current standard celestial reference system adopted by the International Astronomical Union (IAU).
New!!: Pi Leonis and International Celestial Reference System · See more »
Latinisation of names
Latinisation or Latinization is the practice of rendering a non-Latin name (or word) in a Latin style.
New!!: Pi Leonis and Latinisation of names · See more »
Leo (constellation)
Leo is one of the constellations of the zodiac, lying between Cancer the crab to the west and Virgo the maiden to the east.
New!!: Pi Leonis and Leo (constellation) · See more »
Light-year
The light-year is a unit of length used to express astronomical distances and measures about 9.5 trillion kilometres or 5.9 trillion miles.
New!!: Pi Leonis and Light-year · See more »
Moon
The Moon is an astronomical body that orbits planet Earth and is Earth's only permanent natural satellite.
New!!: Pi Leonis and Moon · See more »
Occultation
An occultation is an event that occurs when one object is hidden by another object that passes between it and the observer.
New!!: Pi Leonis and Occultation · See more »
Red giant
A red giant is a luminous giant star of low or intermediate mass (roughly 0.3–8 solar masses) in a late phase of stellar evolution.
New!!: Pi Leonis and Red giant · See more »
SIMBAD
SIMBAD (the Set of Identifications, Measurements, and Bibliography for Astronomical Data) is an astronomical database of objects beyond the Solar System.
New!!: Pi Leonis and SIMBAD · See more »
Smithsonian Astrophysical Observatory Star Catalog
The Smithsonian Astrophysical Observatory Star Catalog is an astrometric star catalogue.
New!!: Pi Leonis and Smithsonian Astrophysical Observatory Star Catalog · See more »
Solar luminosity
The solar luminosity,, is a unit of radiant flux (power emitted in the form of photons) conventionally used by astronomers to measure the luminosity of stars, galaxies and other celestial objects in terms of the output of the Sun.
New!!: Pi Leonis and Solar luminosity · See more »
Solar radius
Solar radius is a unit of distance used to express the size of stars in astronomy.
New!!: Pi Leonis and Solar radius · See more »
Star
A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.
New!!: Pi Leonis and Star · See more »
Stellar atmosphere
The stellar atmosphere is the outer region of the volume of a star, lying above the stellar core, radiation zone and convection zone.
New!!: Pi Leonis and Stellar atmosphere · See more »
Stellar classification
In astronomy, stellar classification is the classification of stars based on their spectral characteristics.
New!!: Pi Leonis and Stellar classification · See more »
Stellar evolution
Stellar evolution is the process by which a star changes over the course of time.
New!!: Pi Leonis and Stellar evolution · See more »
Sun
The Sun is the star at the center of the Solar System.
New!!: Pi Leonis and Sun · See more »
Variable star
A variable star is a star whose brightness as seen from Earth (its apparent magnitude) fluctuates.
New!!: Pi Leonis and Variable star · See more »
Zodiac
The zodiac is an area of the sky that extends approximately 8° north or south (as measured in celestial latitude) of the ecliptic, the apparent path of the Sun across the celestial sphere over the course of the year.
New!!: Pi Leonis and Zodiac · See more »
Redirects here:
References
[1] https://en.wikipedia.org/wiki/Pi_Leonis
